Python: What is the difference between these two import statements?

Question

They both functionally looks same to me. Are there any differences and advantages of using one over another?

>>> from datetime import datetime, timedelta
>>> from datetime import (datetime, timedelta)

Answer 1

If you wrap the imports in parens, you don't have to use a backslash for line continuation if you put a line break in the import statement, which is the preferred style. Functionally, they are identical, and if on one line, leaving out the parens is cleaner.

Answer 2

Both of them are same:

In [17]: import dis

In [18]: def func1():
   ....:     from datetime import datetime, timedelta
   ....:     

In [19]: def func2():
   ....:     from datetime import (datetime, timedelta)
   ....:     

In [20]: dis.dis(func1)
  2           0 LOAD_CONST               1 (-1)
              3 LOAD_CONST               2 (('datetime', 'timedelta'))
              6 IMPORT_NAME              0 (datetime)
              9 IMPORT_FROM              0 (datetime)
             12 STORE_FAST               0 (datetime)
             15 IMPORT_FROM              1 (timedelta)
             18 STORE_FAST               1 (timedelta)
             21 POP_TOP             
             22 LOAD_CONST               0 (None)
             25 RETURN_VALUE        

In [21]: dis.dis(func2)
  2           0 LOAD_CONST               1 (-1)
              3 LOAD_CONST               2 (('datetime', 'timedelta'))
              6 IMPORT_NAME              0 (datetime)
              9 IMPORT_FROM              0 (datetime)
             12 STORE_FAST               0 (datetime)
             15 IMPORT_FROM              1 (timedelta)
             18 STORE_FAST               1 (timedelta)
             21 POP_TOP             
             22 LOAD_CONST               0 (None)
             25 RETURN_VALUE